Jinhua Qinggan granule, a Chinese herbal medicine against COVID-19, induces rapid changes in the plasma levels of IL-6 and IFN-γ
Kageyama, Y.; Aida, K.; Kawauchi, K.; Morimoto, M.; Ebisui, T.; Akiyama, T.; Nakamura, T.
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BackgroundCurrently, effective vaccines or specific therapeutic agents against COVID-19 are not available. However, in China, traditional Chinese herbal medicines have provided therapeutic benefit to patients with COVID-19. Jinhua Qinggan granule (JHQGG) is a Chinese multi-herbal formula previously developed for the treatment of H1N1 influenza and has been encouraged for patients clinically suspected of COVID-19 during medical observation. However, the immunological mechanism for the efficacy of JHQGG has not been confirmed. ObjectivesWe thus examined whether the administration of JHQGG affects hematological and immunological measures in healthy individuals. MethodWe enrolled 18 healthy volunteers, all of whom tested negative for antibodies to SARS-CoV-2. Peripheral blood samples were collected 1 h after oral administration of JHQGG and subjected to hematological, biochemical, and cytokine tests. ResultsJHQGG rapidly induced a significant decrease in the plasma level of IL-6 and an increase in the plasma level of IFN-{gamma}. ConclusionsOur finding suggests that the therapeutic efficacy of JHQGG against COVID-19 is, in part, associated with its rapid immunomodulatory activity.
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